Activity Monitoring is using 40.0 energy when I open it. My battery is being drained. Is there a link?

[Meus Me]

I recently upgraded to Ventura and have noticed significant battery drain on M1 Macbook Pro. When I open Activity Monitor, it reads like this. I close it, but the battery is still being drained by something in the background. Is there a way to find out exactly what is causing this?

 

[pshufd]

That usage is normal for Activity Monitor.

When you upgrade macOS, the system spends a day or two reindexing the system unless you turn Spotlight indexing off and this means elevated SSD activity and CPU usage. This also happens with iOS.

 

[stradify]

Keep an eye on it. For reference, my 2021 16" MBP used .08 for Activity Monitor during the last 12 hours whereas Firefox used 456.